Concentration for Double Acting of F^- to Fluorine Photochemical Reaction
F^-双作用制氟光化学反应的浓度
基本信息
- 批准号:08672383
- 负责人:
- 金额:$ 1.54万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:1996
- 资助国家:日本
- 起止时间:1996 至 1997
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We studied F^- uptake of enamels by simultaneously acting excimer laser irradiation (ultraviolet zone) and various percentages of F^- solution (photochemical reaction). These enamel specimens were polished up to 200mum from 4-faced surfaces of an extracted molar. They were divided into 4 groups the double acting group of F^- solution and irradiation, the group of F^- coating, the irradiation group, and the control group. The 248nm KrF laser consisting of 70mJ/cm^2 500-5,000 shots and 0.1-4.0% of F^- solution (NaF and MFP) was used. After washing out the enamel speciments with 1M-KOH for 24 hours, the surfaces were observed by SEM and XPS,and acid resistance was tested. Cellulose acetate menmbranes adding 0.1M Lactic acid buffer (pH4.0,2mul) were attached at the speciments for one minute. Eluted Ca amounts were analyzed by ICP.Because of the results of the SEM and XPS,it was suggested that photochemical reaction was induced by irradiation. There were significant differences of acid resistance among the groups (p<0.05, one way ANOVA). Eluted Ca amounts of each group which triggered NaF of 4.0 from 0.1% was 0.34-0.50mug with the double acting froup, 0.55-0.69mug with the coating group, 0.59-0.77mug with the irradiation group, and 0.65-0.88mug with the control group. The double acting group with 1%F^- (NaF) was strongest, with acid resistance tending to be weaker in order of the coating group, the irradiation group, and the control group. This group showed a 51.0% effect compared with the control group.
采用准分子激光同时照射(紫外区)和不同比例的F^-溶液(光化学反应)研究了搪瓷对F^-的吸收。这些牙釉质标本从一颗拔出来的臼齿的四个表面抛光到200mm。将其分为F^-溶液加辐照双作用组、F^-包衣组、辐照组和对照组。采用70mJ/cm^2 500 ~ 5000次的248nm KrF激光和0.1 ~ 4.0%的F^-溶液(NaF和MFP)。釉质样品经1M-KOH冲洗24小时后,用SEM和XPS观察表面,并进行耐酸性能测试。加入0.1M乳酸缓冲液(pH4.0,2mul)的醋酸纤维素膜贴于样品1分钟。用ICP分析洗脱钙的量。SEM和XPS分析结果表明,光化学反应是由辐照引起的。各组间耐酸性差异有统计学意义(p<0.05,单因素方差分析)。从0.1%触发NaF为4.0的各组洗脱Ca量为:双作用组为0.34 ~ 0.50mug,涂层组为0.55 ~ 0.69mug,照射组为0.59 ~ 0.77mug,对照组为0.65 ~ 0.88mug。含1%F^- (NaF)的双作用组最强,耐酸能力依次为涂层组、辐照组、对照组弱。与对照组相比,该组的效果为51.0%。
项目成果
期刊论文数量(11)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
国分 美和子, 宮澤 忠蔵 他4名: "エナメル質のフッ素取り込みに及ぼすエキシマレーザー光照射の影響-フッ化物の作用濃度と耐酸性の関連性-" 日本口腔衛生学会雑誌. 46. 626-627 (1996)
Miwako Kokubu、Chuzo Miyazawa 等 4 人:“准分子激光照射对牙釉质中氟化物吸收的影响 - 氟化物工作浓度与耐酸性之间的关系 -” 日本口腔健康学会杂志 46. 626-627(1996 年)。 )
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.Akiyama, C.Miyazawa, et.al.: "The Effects of Excimer Laser Irradiation in Enamel action of Remineralization liqued" Journal of Dental Health. 46. 512-513 (1996)
T.Akiyama、C.Miyazawa 等人:“准分子激光照射对再矿化液化牙釉质作用的影响”《牙科健康杂志》。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
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- 通讯作者:
C.Miyazawa et.al: "The Effects of Excimer Laser Beam Irradiation on F^- Uptake of Enamel" Annual Report of the Osaka Laboratory for Radiation Chemistry Japan Atomic Energy Research Institute. 29. 25-28 (1997)
C.Miyazawa 等人:“准分子激光束照射对 F^- 牙釉质摄取的影响”日本原子能研究所放射化学大阪实验室年度报告。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
C.Miyazawa et.al.: "The Effects of Excimer Laser Beam Irradiation on F^- Uptake of Enamel." Annual Report of the OSAKA Laboratory for Radiation Chemistry Japan Atomic Energy Research Institute. 29. 25-28 (1997)
C.Miyazawa 等人:“准分子激光束照射对牙釉质 F^- 摄取的影响”。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
S.Igarashi, C,Miyazawa et.al.: "The Acting Concentration of PO_4^<3-> for Fluorine Photochemical Reaction" Journal of Dental Health. 47. 500-501 (1997)
S.Igarashi, C,Miyazawa 等人:“氟光化学反应的 PO_4^<3-> 的作用浓度”牙科健康杂志。
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- 影响因子:0
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MIYAZAWA Chyuzo其他文献
MIYAZAWA Chyuzo的其他文献
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{{ truncateString('MIYAZAWA Chyuzo', 18)}}的其他基金
Recalcification of Enamel Due to Laser Ablation
激光烧蚀导致牙釉质再钙化
- 批准号:
10671949 - 财政年份:1998
- 资助金额:
$ 1.54万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
The Fluoridization Photochemical Reaction on Excimer Laser Irradiation of Enamel
准分子激光照射牙釉质的氟化光化学反应
- 批准号:
06672065 - 财政年份:1994
- 资助金额:
$ 1.54万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
The CO_3^<2-> Variation of Enamel Crystals on Uptake of F^-Ion
牙釉质晶体吸收F^-离子时CO_3^<2->的变化
- 批准号:
02670928 - 财政年份:1990
- 资助金额:
$ 1.54万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)